This photo is called "Santa Lives." I believe it's from the Library of Congress, though I found it some time ago for a PowerPoint project at Christmas-Clipart.net.
I've always loved it because it captures the spirit of Christmas so well. It's about hope, anticipation, optimism, all things we need this year if not more than ever, certainly as much as ever.
Hope everyone has a wonderful holiday season. In the words from one of my new favorite Christmas songs, "Better Days," by the Goo Goo Dolls, "this is the night the world begins again."